macOS 10.15 or higher requires the user to permit "Screen Recording" in order for DisplayLink devices to work properly. The message is generated by the OS and the screen is not actually being recorded by DisplayLink. Approving it enables the DisplayLink driver to access the pixels it needs to render mirrored or extended screens, and send the pixels over USB from your computer to the DisplayLink dock. It does not send any data or pixels back to DisplayLink.
To approve the permission, please follow these steps:
1. Download and install the latest DisplayLink mac OS driver released for 10.15 or higher Click here.
2. Reboot your system.
You will be prompted with one of the below notifications.
1. Open System Preferences.
2. Go to Security & Privacy.
3. Go to Privacy.
4. Click on the Lock to make changes.
Authenticate the changes by using your login details.
5. Go to Screen Recording
6. Check the box next to DisplayLinkUserAgent.
7. Click on the Lock again to save changes.
7. Click on the Lock again to save changes.
8. Click Quit & Reopen.
9. A reboot may be necessary.